G-SHOCK Men's GD 100 Watch. The G-SHOCK GD 100 Watch in Black & Gold This sleek G-SHOCK watch will keep you right on time. With a durable shiny black resin strap, double buckle clasp in gold, and polished gold face, this digital watch offers durability along with a style. Digital time World time 31 time zones (48 cities) 5 alarms Countdown timer 1/100 second stopwatch LED illumintation Water resistant to 200M Shock resistant Lithium battery (CR2025) Approx. battery life: 7 years Imported By G-SHOCK.